undefined references when compiling with -mno-cygwin

[Jeff Boleng]

Title: undefined references when compiling with -mno-cygwin



I am compiling a medium/large sized c++ program using the 
-mno-cygwin linker option.  During link I get a lot of undefined symbol 
references in libstdc++.a from iostream.o, streambuf.o, fileops.o, 
stdiostream.o, floatconv.o, and iovscanf.o.  The references are to __errno, 
_ctype_, and _impure_ptr.  I'm using the stl pretty heavily, but I'm not 
using any of cygwin's Unix API.  Seems like it should work.
Similar errors in the math library (libm.a). 
I'm wondering if the lib*.a files (especially libstdc++ and the 
stl headers) included with the cygwin release (version 2.02.1(2)-release 
(i586-pc-cygwin32)) I'm using do make use of some portions of the API that are 
Unix specific and I therefore won't be able to compile without linking to 
cygwin.dll.
I didn't find anything in the FAQ or archives, so if anyone can 
help please let me know. 
Thanks, 
Jeff Boleng boleng@rmi.net
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